Cell Membrane and Transport Flashcard Review

Front

What strengthens and stabilizes the cell membrane?

Back

Cholesterol

Front

What happens to a cell in an isotonic solution?

Back

It stays the same size.

Front

What is another term for 'selectively permeable'?

Back

Semipermeable.

Front

What happens to an animal cell placed in a hypertonic (salty) solution?

Back

It shrinks - gets smaller.

Front

What is a phospholipid composed of?

Back

A phosphate and glycerol head and 2 fatty acid chain tails.

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What are the two main types of transport across the cell membrane?

Back

Passive transport and active transport.

Front

What is passive transport?

Back

Movement of substances across the cell membrane without the use of energy.

Front

What is active transport?

Back

Movement of substances against their concentration gradient, requiring energy.

Front

What role do proteins play in the cell membrane?

Back

They assist in transport and communication across the membrane.